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Equity Method Investment in Affiliate - Summary of Consolidated Financial Position and Results of Operations of Holding Companies, Accounted for Using Equity Method (Detail) (USD $)
In Millions, unless otherwise specified |
9 Months Ended | 12 Months Ended |
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Sep. 30, 2014
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Dec. 31, 2013
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| Equity Method Investments and Joint Ventures [Abstract] | ||
| Current Assets | $ 40.5us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets | $ 45.7us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets |
| Total Assets | 1,496.7us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets | 1,579.9us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets |
| Current Liabilities | 13.8us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities | 16.1us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities |
| Total Liabilities | 64.1us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilities | 69.5us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilities |
| Members' Equity | 1,432.6us-gaap_EquityMethodInvestmentSummarizedFinancialInformationEquity | 1,510.4us-gaap_EquityMethodInvestmentSummarizedFinancialInformationEquity |
| Revenue | 112.4us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue | 142.4us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue |
| Income from Continuing Operations | 26.8us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems | 16.4us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems |
| Net Income | $ 26.8us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss | $ 16.4us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss |
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- Definition
The amount of assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of current assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of current liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of equity, including noncontrolling interest, reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of income (loss) from continuing operations before extraordinary items reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of net income (loss) reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity. No definition available.
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